Electric boiler.



0. E. SARR.

ELECTRIC BOILER.

APPLICATION man MAY 25, 1917.

Patented Dec. 25,1917.

anuzmtoz attozucg 0. E. SARR.

ELECTRIC BOILER. APPLICATION FILED MAY 25. 1917,

H. M W 9 L1 0 n 1 m M 5,m 4 m /1 2 I a %.H 8F r Dm 7 4 m o o f P 2 witness -0. E. SARR.

ELECTRIC BOILER.

APPLICATION FILED MAY 25, 1911.

1 ,25 1 l 1 6. Patented Dec. 25, 1912:

3 SHEETS-SHEET 3.

, I dmmm;

UNITED STATES one nrzaasnan, or oEYLorr, oruo.

ELECTRIC roman.

I Specification of Letters Patent. Pgizentgd Dew, 191 Y Application filed May 25, 1917. Serial No. 170,915.

To all whom it may concern:

Be it known that I, ORA ELZER SARR, a citizen of the United States, residing at Ceylon, in the county of Erie and State of Ohio, have invented a new and useful Electric Boiler, of which the following is a specification.

The present invention appertains generally to boilers and aims to provide a novel and improved electrically heated boiler, wherein the steam for operating an engine or other device is produced by an electrical current, the use of coal or other fuel and attendant objections being eliminated.

A further object of the invention is the provision of novel means for suspending electrode plates within the boiler, and for connecting the feed wires thereto from the exterior of the boiler.

With the foregoing and other objects in view, which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed, without dc arting from the spirit of the invention.

l he invention is illustrated in the accompanying drawings, wherein Figure 1 is a longitudinal section of a horizontal boiler embodying the present improvements.

Fig. 2 is an enlarged cross section on the line 2-2 of Fig. 1.

Fig. 3 is a detail view showing one of the hangers for the electrode plates.

Fig. 4 is a sectional detail of the device for leading the current through the shell of the boiler. v

Fig. 5 is a vertical section of an upright boiler incorporating the invention.

In the drawings, the numeral 1 designates a horizontal boiler, which can be of any suitable size according to the use to which it is to be put. The boiler can have any suitable water inlet and steam outlet, although said inlet and outlet are not shown in the drawings.

Suspended within the boiler is a set of parallel vertical electrode plates 2 of suitable size and material, and disposed side by side longitudinally of the boiler. The electrode plates 2 are spaced apart suitably (6 to 8 inches in practice) according to the resistance desired, and electromotive force used, and are spaced about a foot above the bottom of the' shell so that the boiler will not go dry.

In order to suspend the electrode plates there are provided transverse beams 3 within the upper portion of the boiler having their ends bent upwardly and bolted or otherwise fastened, as at 1, to the shell of the boiler. The ends of the boiler are provided with removable manhole covers or plates 5 of any suitable shape covering manhole openings in said boiler ends through which the plates 2 can be inserted and removed. The covers 5 can be attached. to ordinary boiler shells, and are connected by stay rods 6. Eye bolts 7 have their shanks extending upwardly through the beam 3, said beams being preferably provided with slots 3' for the adjustment of the eye bolts longitudinally of the beams, whereby the plates 2 can be adjusted relatively, Nuts, 8 are threaded onto the bolts 7 and rest on the beams 3 for supporting said bolts with their eyes lowermost.

Vertical insulating hangers 9 have eyes 10 at their upper ends engaging the eyes of the bolts 7, to suspend said hangers which are provided at their lower ends with eyes 11 engaging the upstanding eyes 12 of straps 13 bolted or otherwise fastened to the upper edge portions of the plates 2. The hangers thus suspend plates 2 from the beams and insulate said plates'from each other. The plates hang within the water and with their upper edge portions and other parts above the Water level. Any suitable number of plates 2- can be used, according to the capacity of the boiler.

Straps 14 are riveted, bolted or otherwise secured to the upper edge portions of the electrode plates and have eyes 15 to which insulated conductors 16 are bolted or otherwise fastened.

In order to lead the current through the shell of the boiler, a slab 17 of glass, or other insulating material, is disposed across an opening 18 preferably provided in one end cover 5 of the boiler shell near the top thereof. The slab 17 is on the exterior of the boiler and rovides a window through which the interior parts can be seen for the purpose of examination. A ring 19 of angular cross section has a flange overlapping the periphery of the disk shaped slab 17 and another flange overlapping the outer face of said slab, and the latter flange is connected by bolts 20 or other securing elements with the shell of the boiler around the opening 16 to clamp the slab securely in place, asbestos or other gaskets 21 being disposed between the slab l7 and the boiler shell and ring 19, to prevent leakage. A pair of leads 22 extend through the slab 17 and are spaced apart to be insulated from each other, said leads being provided attheir inner ends with eyes 23 projecting through the opening 18 and to which the alternate conductors 16 are bolted or otherwise fastened, whereby. the alternate electrode plates will be positively and negatively charged. The outer ends of the leads 22 have eyes 24 to which are bolted or other- Wise fastened, a pair of conductors 25 leading to a switch 26, preferably carried by the end of the boiler, for connecting the feed wires 27 with the conductors 25 and 16. When the switch 26 is closed, this will permit the electrical current to traverse the circuit, being divided by the conductors 16 to flow between the electrode plates 2, the resistance offered by the water between the plates serving to heat the water to the boilmg point, to produce the steam.

In Fig. 5, an upright boiler .1, having suitable steam outlet and water inlet (not shown), is illustrated and the electrode plates 2 are hung therein in vertical position, the upper end of the boiler being provided with an opening 5 for the insertion and removal of the plates, and the hangers for the plates are connected to the cover 6' which is secured to the boiler shell over the opening 5. Similar hangers are used for suspending the plates, but the hangers are connected to the cover 6 instead of the beams as above described, and similar electrical connections are used for leading the current through the shell to and from the electrode plates.

. portions of sai boilers.

Having thus described the invention, what is claimed as new is 1. An electric boiler embodying a shell, spaced electrode plates suspended therein, insulating han ers connecting the upper plates and shell, and conductors leading through said shell and connected to alternate electrode plates.

2. An electric boiler embodying a shell having upper supporting means, insulating hangers suspended from said means, electrodeflates suspended from said hangers in space relation, and conductors leading through the shell and connected to alternate electrode plates.

3. An electric boiler embodying a shell, insulated electrode plates suspended therein, the shell having an opening, a transparent glass slab extending across said opening upon the exterior of the shell, a ring fittin the slab, securing elements connecting said ring and shell to clamp the slab therebetween, a gasket between said. slab and shell, a pair of leads extending through and carried by said slab for the connection of feed wires, and conductors connected to said leads within the shell and connected to the electrode plates.

In testimony that I claim the foregoing as my own, I have hereto afiixed my signature in the presence of two witnesses.

F. E. Corinna, Leora D. Posr. 

